1. The variety in its diversity

   OriginalPaper Pages: 181 - 187

2. The breeding of peas in the Netherlands

   • H. De Haan

   OriginalPaper Pages: 188 - 194

3. Tuber forming species and varieties of the genus Solanum tested for resistance to the potato root eelworm Heterodera rostochiensis Wollenweber

   • C. Ellenby

   OriginalPaper Pages: 195 - 202

4. Selection of carrots for carotene content

   • O. Banga
   • J. W. De Bruyn

   ReviewPaper Pages: 203 - 211

5. Some remarks on the breeding of field crops in the Netherlands

   • J. C. Dorst

   OriginalPaper Pages: 212 - 220

6. Response of rice varieties to short-day treatment

   • R. L. M. Ghose
   • S. V. S. Shastry

   OriginalPaper Pages: 221 - 228

7. Some data and figures on potato breeding in the Netherlands

   • H. Zingstra

   OriginalPaper Pages: 229 - 232

8. Leaf testing as a method of genetical analysis of immunity from Phytophthora infestans in potatoes

   • H. J. Toxopeus

   OriginalPaper Pages: 233 - 240

9. New items

   Announcement Pages: 240 - 240

10. Erratum

    Erratum Pages: 240 - 240